Let's build together
Preston M

Hi, I'm Preston Mayieka

I build high-fidelity products that scale without friction. I'm a Software Engineer who solves problems with code and design. 3 production apps • 1,500+ users • Built in 3 years

Career Path

Experience

A glimpse into my professional journey

CP

Software Engineer

College Produce Inc.

Mar 2026 - Present

Calgary, Canada · Remote

  • Building automation and internal tooling to streamline operational workflows.
LM

Software Engineer

Lit & More

Aug 2025 - Mar 2026

Fort Myers, FL · Remote

  • Built an Accounts Receivable dashboard where clients pay invoices in one click, cutting manual follow-ups by 80%.
  • Automated client job intake from email and tracked 150+ client matters in real time, improving operational visibility.
  • Integrated Stripe for payments and shipped end-to-end features across the stack.
FCC

Content Writer

freeCodeCamp

Aug 2024 - Present

Remote

  • Publish technical articles on web development and tech-career growth, reaching freeCodeCamp's global audience.
  • Apply SEO best practices to maximize discoverability and reader engagement.
DS

Frontend Developer

DechSoft

Mar 2025 - Oct 2025

Abuja, Nigeria · Remote

  • Migrated 12+ high-traffic pages from Django templates to React/Next.js, cutting load times by 3.2s and improving responsiveness by 47%.
  • Lifted Lighthouse score from 62 → 91, driving a 38% increase in organic search impressions and 22% more property listing visits.
  • Implemented 300ms search debouncing, reducing unnecessary API calls by 54% and perceived latency by 40%.
  • Documented 4,000+ lines of legacy code, shortening onboarding by 35% and bug resolution by 28%.

Things I've Shipped

Featured Projects

Three production projects, each with metrics and a full write-up.

What people say

Testimonials

From people I've worked with and shipped to.

Emmanuel Shikuku's avatar
Emmanuel Shikuku
CEO @ Calatech

Deep technical expertise across frontend and backend frameworks

Nexus AI User's avatar
Nexus AI User
Content Manager

Cut documentation search from 15 minutes to seconds. Impressively accurate AI responses.

Emmanuel Shikuku's avatar
Emmanuel Shikuku
CEO @ Calatech

Deep technical expertise across frontend and backend frameworks

Nexus AI User's avatar
Nexus AI User
Content Manager

Cut documentation search from 15 minutes to seconds. Impressively accurate AI responses.

About Me

I Build Tools That Save Time & Money

Shipping products that cut costs and boost productivity

1,000+
Hours Saved
$50K+
Cost Reduction
3
Production Apps

Saving Time, Cutting Costs

Built 3 apps that help users work faster and spend less. Real tools solving expensive problems.

75% Search Time Reduced
30min Saved Daily per Dev
60% Cost Optimization

Automation That Pays Off

Systems that eliminate manual work, reduce costs, and free up your team to do high-value work.

AI Pipelines

Zero manual processing costs

CI/CD Workflows

Ship faster, reduce overhead

Technical Stack

Next.js
TypeScript
PostgreSQL
Prisma
Node.js
AI/LangChain

The tools are just tools. What matters is shipping something that solves real problems.

Writing & Teaching

Sharing practical strategies on reducing costs, scaling efficiently, and building profitable products.

FreeCodeCamp
Technical Articles
Hashnode
Real-World Insights

Latest Articles

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Read More on Hashnode Read More on FreeCodeCamp

Feel free to reach out

Contact Me

Let's connect!

prestonnyamweya@gmail.com
+254 799 078 848
Nairobi, Kenya